The G.O.P. pollster Patrick Ruffini’s book “Party of the People” outlined the realignments reflected in this year’s election results.

Delaware Democrats saw sweeping successes on election night, complete with multiple historic wins. Sarah McBride secured the at-large seat in the House of Representatives. Lisa Blunt Rochester ...

At the time of writing, 61 percent of votes were counted in the swing state of Arizona, with Trump at 51.9 percent to Harris' ...

Democrat April McClain Delaney has narrowly won a U.S. House seat in Maryland’s most competitive congressional races.

Our On-Target report explores the media habits of three key audiences in the U.S. to help you navigate the changing media landscape.